A timed solid-liquid separator

Abstract

The present invention discloses a timed solid-liquid separator, which includes a separation tank. A lower water inlet pipe, a drain pipe, a first sewage discharge pipe and a second sewage discharge pipe are provided in the middle of the separation tank. A first swirl collection cone is provided on the inner wall of the separation tank below the lower water inlet pipe. A static water anti-disturbance cone is inserted at the lower port of the first swirl collection cone. A pressure adjustment cone is provided on the inner wall of the separation tank above the lower water inlet pipe. A second swirl collection cone is sleeved on the upper end of the pressure adjustment cone. The upper port of the pressure adjustment cone is connected with an adjustment pipe extending above the second swirl collection cone. The timed solid-liquid separator of the present invention belongs to the technical field of recirculating aquaculture, can effectively separate residual baits and feces in the aquaculture water, has a high separation rate, greatly reduces the discharge of aquaculture tail water after timed solid-liquid separation, creates favorable conditions for realizing the purification, recovery and reuse of pond aquaculture tail water, and relieves the pressure, and saves aquaculture water resources.

Description

Technical Field

[0001] The present invention relates to the technology of recirculating aquaculture, and more specifically, it relates to a timed solid-liquid separator. Background Art

[0002] The recirculating aquaculture system is a new aquaculture model that China is vigorously developing and constructing at present. It recycles the aquaculture treatment generated in the aquaculture pond through a series of water treatment units after treatment. The pond recirculating aquaculture system can remove the pollutants of residual bait and feces in the aquaculture water body in real time, reduce the generation amount of harmful pollutants such as ammonia nitrogen and nitrite nitrogen, so as to achieve the purpose of purifying the aquaculture water environment. Therefore, the recirculating aquaculture system can not only solve the problem of low water resource utilization rate, but also provide a stable, reliable, comfortable and high-quality growth environment for aquaculture organisms, providing favorable conditions for high-density aquaculture.

[0003] In pond recirculating aquaculture, it is necessary to separate, filter and reuse the residual bait and feces. However, there is no device in the prior art that can achieve low energy consumption, high efficiency, micro-emission, zero failure and maintenance-free when separating the particulate residual bait and feces in the aquaculture tail water. The existing separators have low separation efficiency, high separation energy consumption, high failure rate and high maintenance cost, and cannot meet the needs of aquaculture. Summary of the Invention

[0004] The technical problem to be solved by the present invention is aimed at certain deficiencies in the above-mentioned prior art. The purpose of the present invention is to provide a non-energy-consuming timed solid-liquid separator that can effectively separate the residual bait and feces in water.

[0005] To achieve the above purpose, the present invention provides a timed solid-liquid separator, including a separation tank. A lower water inlet pipe, a drain pipe, a first sewage discharge pipe and a second sewage discharge pipe are arranged in the middle of the separation tank. A first swirl collection cone is arranged on the inner wall of the separation tank below the lower water inlet pipe. A static water anti-disturbance cone is inserted at the lower port of the first swirl collection cone. A pressure adjustment cone is arranged on the inner wall of the separation tank above the lower water inlet pipe. A second swirl collection cone is sleeved on the upper end of the pressure adjustment cone. The upper port of the pressure adjustment cone is connected with an adjustment pipe extending above the second swirl collection cone.

[0006] Further, a precipitation collection cone surrounding the lower end of the static water anti-disturbance cone is arranged at the lower end of the inner wall of the separation tank. The first sewage discharge pipe is communicated with the precipitation collection cone.

[0007] Furthermore, a sewage collection well is arranged at the bottom end of the precipitation collection cone. The first sewage discharge pipe is communicated with the sewage collection well.

[0008] As a further improvement, a flow guiding and speed increasing cone is arranged in the separation tank above the lower water inlet pipe. The water outlet of the lower water inlet pipe is adapted to the outer wall of the flow guiding and speed increasing cone.

[0009] Furthermore, a water collecting tank connected to the inner end of the drain pipe is provided in the separation tank.

[0010] As a further improvement, an isolation funnel is provided between the outer wall of the pressure regulating cone and the inner wall of the separation tank. A sewage discharge hole is provided on the conical wall of the isolation funnel, and the inlet of the second sewage discharge pipe is provided between the isolation funnel and the pressure regulating cone.

[0011] Furthermore, the regulating pipe includes an upper water inlet pipe connected to the upper port of the pressure regulating cone and an upper water outlet pipe provided above the upper port of the second swirl collecting cone. The outer ends of the upper water outlet pipe and the upper water inlet pipe extend to the outside of the separation tank. A U-shaped pipe connected to the upper water outlet pipe and the upper water inlet pipe is provided outside the separation tank. A water spray head extending along the tangential direction of the rotating surface of the separation tank is provided at the inner end of the upper water outlet pipe.

[0012] As a further improvement, the precipitation collecting cone surrounds the static water anti-disturbance cone and the lower end of the first swirl collecting cone, and the small end of the static water anti-disturbance cone is inserted upward into the small port at the lower end of the first swirl collecting cone; the small end of the flow guiding and speed increasing cone is inserted downward into the first swirl collecting cone and surrounds the small port at the upper end of the static water anti-disturbance cone. A water blocking ring is provided at the top of the outer wall of the flow guiding and speed increasing cone, and the water outlet at the inner end of the lower water inlet pipe is arranged below the water blocking ring; the large port at the upper end of the flow guiding and speed increasing cone is inserted into the large port at the lower end of the pressure regulating cone.

[0013] Furthermore, the regulating pipe includes an upper water inlet pipe connected to the upper port of the pressure regulating cone and an upper water outlet pipe provided above the upper port of the second swirl collecting cone. The upper water inlet pipe extends vertically upward to the upper port of the second swirl collecting cone, the upper water outlet pipe is horizontally arranged, a U-shaped pipe connected to the upper water outlet pipe and the upper water inlet pipe is provided outside the separation tank, and a water spray head extending along the tangential direction of the rotating surface of the separation tank is provided at the inner end of the upper water outlet pipe.

[0014] As a further improvement, a first timed electric sewage discharge valve is provided on the first sewage discharge pipe, and a second timed electric sewage discharge valve is provided on the second sewage discharge pipe.

[0015] Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the timed solid-liquid separator of the present invention are as follows:

[0017] The energy-free timed concentration separator of the present invention can effectively separate residual baits and feces in water. Two cyclone precipitation components are arranged in the separation tank to separate and precipitate the residual baits and feces in the aquaculture tail water twice. Each cyclone precipitation component at the lower part of the separation tank mainly concentrates and precipitates large-particle substances, and the cyclone precipitation component at the upper part of the separation tank mainly concentrates and precipitates suspended substances and semi-suspended substances. Through simultaneous concentration and precipitation from top to bottom, the separation efficiency is greatly improved. After timed concentration and separation, the discharge of aquaculture tail water is greatly reduced, creating favorable conditions for the purification, recycling and reuse of pond aquaculture tail water and saving aquaculture water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic internal structure diagram of the timed solid-liquid separator in Embodiment 1;

[0019] Figure 2 is a schematic internal structure diagram of the timed solid-liquid separator in Embodiment 2;

[0020] Figure 3 is a top view of the structure of the regulating pipe in Embodiment 2;

[0021] Figure 4 is a top view of the structure of the regulating pipe in Embodiment 3.

[0022] In the figure: 1. Second cyclone collection cone; 2. Pressure regulating cone; 3. Flow guiding and speed increasing cone; 4. First cyclone collection cone; 5. Static water anti-disturbance cone; 6. Precipitation collection cone; 7. Separation tank; 8. Lower water inlet pipe; 9. Drain pipe; 10. First sewage discharge pipe; 11. Second sewage discharge pipe; 12. Regulating pipe; 13. Sewage collection well; 14. Water collection trough; 15. Isolation funnel; 16. Sewage discharge hole; 17. Top cone; 18. Water retaining ring; 19. Upper water inlet pipe; 20. Upper water outlet pipe; 21. U-shaped pipe; 22. Sprinkler head; 23. Lower water outlet pipe; 24. First timed electric sewage discharge valve; 25. Second timed electric sewage discharge valve. EMBODIMENTS

[0023] The following is a further description of the present invention in conjunction with embodiments, but it does not constitute any limitation to the present invention. Any limited number of modifications made by anyone within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0024] The specific embodiments of the present invention are as follows:

[0025] Embodiment 1

[0026] Refer to Figure 1As shown in the figure, a timed solid-liquid separator includes a separation tank 7. A top cone 17 is provided at the top of the separation tank 7. A lower water inlet pipe 8 is provided in the middle of the separation tank 7. A first swirl collection cone 4 is provided on the inner wall of the separation tank 7 below the lower water inlet pipe 8. A static water anti-disturbance cone 5 is inserted at the lower port of the first swirl collection cone 4. A first sewage discharge pipe 10 is provided at the bottom of the separation tank 7. A pressure regulating cone 2 is provided on the inner wall of the separation tank 7 above the lower water inlet pipe 8. A second swirl collection cone 1 is sleeved on the upper end of the pressure regulating cone 2. The upper port of the pressure regulating cone 2 is connected to a regulating pipe 12 extending above the second swirl collection cone 1. A drain pipe 9 is provided at the top of the separation tank 7. A second sewage discharge pipe 11 adapted to the outer wall of the pressure regulating cone 2 is provided on the side wall of the separation tank 7. Valve devices are provided on the first sewage discharge pipe 10, the second sewage discharge pipe 11, the lower water inlet pipe 8, the drain pipe 9 and the regulating pipe 12.

[0027] In this timed solid-liquid separator, a lower swirl precipitation assembly is composed of the first swirl collection cone 4, the static water anti-disturbance cone 5 and the lower water inlet pipe 8. The aquaculture tail water enters the separation tank 7 from the lower water inlet pipe 8. The water outlet of the lower water inlet pipe 8 sprays the aquaculture tail water along the tangential direction. Under the guiding action of the inner wall of the first swirl collection cone 4, a spiral downward flowing water flow is formed. After the water flow reaches the static water anti-disturbance cone 5, due to the relationship between centrifugal force and weight, the solid particles can flow spirally downward along the outer wall of the static water anti-disturbance cone 5 and then precipitate to the bottom and are discharged through the first sewage discharge pipe 10; the static water anti-disturbance cone 5 plays a role in preventing disturbance flow, so that the solid particles will not surge upward in large quantities. The aquaculture tail water can be precipitated once through the lower swirl precipitation assembly.

[0028] An upper swirl precipitation assembly is composed of the pressure regulating cone 2, the second swirl collection cone 1 and the regulating pipe 12. The aquaculture tail water that has been purified once enters the regulating pipe 12 from the pressure regulating cone 2 and then sprays out above the second swirl collection cone 1. The aquaculture tail water sprayed out by the regulating pipe 12, under the guiding action of the inner wall of the second swirl collection cone 1, the water outlet of the regulating pipe 12 is slightly inclined downward to generate a spiral water flow. The suspended and semi-suspended substances in the aquaculture tail water will enter from the bottom port of the second swirl collection cone 1 and flow along the outer wall of the pressure regulating cone 2 and then precipitate into the cavity between the pressure regulating cone 2 and the separation tank 7. The precipitate can be discharged through the second sewage discharge pipe 11.

[0029] After the aquaculture tail water is precipitated by the lower swirl precipitation assembly and the upper swirl precipitation assembly, the solid residual bait and feces can be effectively separated with a high separation rate, and cleaner aquaculture water is obtained, and then it is recycled back to the aquaculture pond from the drain pipe 9.

[0030] In this embodiment, a precipitation collection cone 6 surrounding the lower end of the static water anti-disturbance cone 5 is provided at the lower end of the inner wall of the separation tank 7. The first sewage discharge pipe 10 is communicated with the precipitation collection cone 6. The precipitate can precipitate into the precipitation collection cone 6 and then be discharged through the first sewage discharge pipe 10.

[0031] In this embodiment, a sewage collection well 13 is provided at the bottom end of the precipitation collection cone 6. The first sewage discharge pipe 10 is communicated with the sewage collection well 13. The sediment can settle into the sewage collection well 13 and then be discharged through the first sewage discharge pipe 10.

[0032] In this embodiment, the upper end of the still water anti-disturbance cone 5 is inserted into the bottom end port of the first swirl collection cone 4, and the lower end of the still water anti-disturbance cone 5 is inserted into the port at the upper end of the precipitation collection cone 6, facilitating the sediment to settle into the precipitation collection cone 6.

[0033] In this embodiment, a flow guiding and speed increasing cone 3 is provided above the lower water inlet pipe 8 in the separation tank 7. The water outlet of the lower water inlet pipe 8 is adapted to the outer wall of the flow guiding and speed increasing cone 3. The center lines of the flow guiding and speed increasing cone 3 and the still water anti-disturbance cone 5 coincide. The center lines of each funnel and each cone are coincident with the center line of the separation tank 7.

[0034] The flow guiding and speed increasing cone 3 and the still water anti-disturbance cone 5 are suspended in the separation tank 7. The bottom end of the flow guiding and speed increasing cone 3 is inserted into the first swirl collection cone 4. The outer wall of the flow guiding and speed increasing cone 3 can block the water flow and solids, preventing a large amount of sediment from surging upwards. After the water flow enters the separation tank 7 from the lower water inlet pipe 8, it is blocked by the outer wall of the flow guiding and speed increasing cone 3 and forms a downward flowing spiral water flow, enabling the solid particles to settle downwards.

[0035] In this embodiment, a water collection tank 14 connected to the inner end of the drain pipe 9 is provided in the separation tank 7. Drain holes are provided at the bottom of the water collection tank 14. The water from the top of the separation tank 7 will enter the water collection tank 14, where particle precipitation can be carried out again, and then drained through the drain pipe 9. The drain holes can be used for sewage discharge during later cleaning.

[0036] In this embodiment, an isolation funnel 15 is provided between the outer wall of the pressure regulating cone 2 and the inner wall of the separation tank 7. Drainage holes 16 are provided on the conical wall of the isolation funnel 15. The inlet of the second sewage discharge pipe 11 is provided between the isolation funnel 15 and the pressure regulating cone 2. The precipitated suspended and semi-suspended substances precipitate in the cavity between the outer wall of the pressure regulating cone 2, the inner wall of the isolation funnel 15, and the outer wall of the second swirl collection cone 1, and then enter the cavity between the outer wall of the isolation funnel 15 and the outer wall of the pressure regulating cone 2 through the drainage holes 16, and are then discharged through the second sewage discharge pipe 11.

[0037] The outer wall at the bottom end of the pressure regulating cone 2 is hermetically connected to the inner wall of the separation tank 7; the outer wall at the top end of the second swirl collection cone 1 is hermetically connected to the inner wall of the separation tank 7, the outer wall at the top end of the first swirl collection cone 4 is hermetically connected to the inner wall of the separation tank 7, and the outer wall at the top end of the precipitation collection cone 6 is hermetically connected to the inner wall of the separation tank 7.

[0038] In this embodiment, the water inlet end of the regulating pipe 12 is connected to the upper port of the pressure regulating cone 2, and the port direction of the water outlet of the regulating pipe 12 is parallel to the tangential direction of the separation tank 7.

[0039] In this embodiment, the inner end of the lower water inlet pipe 8 is provided with a lower water outlet pipe 23 whose port direction is parallel to the tangential direction of the separation tank 7.

[0040] In this embodiment, the regulating pipe 12 includes an upper water inlet pipe 19 connected to the upper port of the pressure regulating cone 2 and an upper water outlet pipe 20 located above the upper port of the second swirl collection cone 1. The outer ends of the upper water outlet pipe 20 and the upper water inlet pipe 19 extend to the outside of the separation tank 7. A U-shaped pipe 21 connected to the upper water outlet pipe 20 and the upper water inlet pipe 19 is provided outside the separation tank 7. The inner end of the upper water outlet pipe 20 is provided with a water spray head 22 extending along the tangential direction of the turning surface of the separation tank 7.

[0041] In this embodiment, the upper water outlet pipe 20 and the upper water inlet pipe 19 extend radially outward along the separation tank 7.

[0042] Embodiment 2

[0043] The structure of this embodiment is substantially the same as that of Embodiment 1. The difference is that, as Figure 2 shown, the precipitation collection cone 6 surrounds the static water disturbance prevention cone 5 and is arranged at the lower end of the first swirl collection cone 4, and the small end of the static water disturbance prevention cone 5 is inserted upward into the small port at the lower end of the first swirl collection cone 4; the small end of the flow guiding and speed increasing cone 3 is inserted downward into the first swirl collection cone 4 and surrounds the small port at the upper end of the static water disturbance prevention cone 5. A water retaining ring 18 is provided at the top of the outer wall of the flow guiding and speed increasing cone 3. The water outlet at the inner end of the lower water inlet pipe 8 is arranged below the water retaining ring 18; the large port at the upper end of the flow guiding and speed increasing cone 3 is inserted into the large port at the lower end of the pressure regulating cone 2. In this embodiment, the height of the part below the pressure regulating cone 2 in the separation tank 7 is shortened. Therefore, large particles can be stratified quickly, there is overlap between components, the space of the separation tank 7 is saved, the height of the separation tank 7 is reduced, the weight is reduced, and the production cost is lowered; the height of the part above the pressure regulating cone 2 in the separation tank 7 can be appropriately increased. Without increasing the overall height of the separation tank 7, the height dimension between the pressure regulating cone 2 and the drain pipe 9 can be increased. Therefore, the sedimentation time of the semi-suspended matter can be prolonged, and it can be ensured that cleaner water can flow out of the drain pipe 9.

[0044] In this embodiment, the regulating pipe 12 includes an upward water inlet pipe 19 connected to the upper port of the pressure regulating cone 2 and an upward water outlet pipe 20 disposed above the upper port of the second swirl collecting cone 1. The upward water inlet pipe 19 extends vertically upward to the upper port of the second swirl collecting cone 1, and the upward water outlet pipe 20 is horizontally arranged. An inverted U-shaped pipe 21 connected to the upward water outlet pipe 20 and the upward water inlet pipe 19 is provided outside the separation tank 7. A water spray head 22 extending along the tangential direction of the circumferential surface of the separation tank 7 is provided at the inner end of the upward water outlet pipe 20. The upward water inlet pipe 19 does not need to penetrate through the cone wall of the second swirl collecting cone 1, reducing the processing and manufacturing as well as the assembly difficulty.

[0045] Embodiment 3

[0046] Refer to the attached Figure 4 As shown in the figure, in this embodiment, a first timing electric valve 24 is provided on the first sewage discharge pipe 10, and a second timing electric valve 25 is provided on the second sewage discharge pipe 11.

[0047] This device can work without energy consumption, and works by means of the water level difference caused by the sewage treatment carried out by the upper level, with good energy saving performance;

[0048] Timed concentration separation can be achieved, and the large-flow concentrated dirt input from the upper level can be further subjected to secondary and tertiary concentration precipitation separation. The secondary concentration precipitation is mainly large particles, and the tertiary concentration precipitation separation is mainly suspended matter and semi-suspended matter;

[0049] Automatic adjustable timed sewage discharge can be realized through a time timer and an electric ball valve to meet the requirements of various working conditions;

[0050] The sewage discharge volume of this device is greatly reduced, and the ratio of the water inlet to the water outlet is 1 / 16 to 1 / 36. For example, when the upper-level influent sewage is 3 m3 / h, it is 72 m3 / d in 24 hours, and the timed discharge is 2 - 3 m3 / d, so the ratio of the water inlet to the water outlet is between 1 / 24 and 1 / 36; when the upper-level influent sewage is 2 m3 / h, it is 48 m3 / d in 24 hours, and the timed discharge is 1 - 3 m3 / d, so the ratio of the water inlet to the water outlet is between 1 / 16 and 1 / 48.

[0051] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A timed solid-liquid separator, comprising a separation tank (7), characterized in that, The separation tank (7) is provided with a lower water inlet pipe (8), a drain pipe (9), a first sewage discharge pipe (10) and a second sewage discharge pipe (11). On the inner wall of the separation tank (7) below the lower water inlet pipe (8), a first swirl collection cone (4) is provided. At the lower port of the first swirl collection cone (4), a still water anti-disturbance cone (5) is inserted. On the inner wall of the separation tank (7) above the lower water inlet pipe (8), a pressure regulating cone (2) is provided. At the upper end of the pressure regulating cone (2), a second swirl collection cone (1) is sleeved. The upper port of the pressure regulating cone (2) is connected with a regulating pipe (12) extending above the second swirl collection cone (1). Inside the separation tank (7) above the lower water inlet pipe (8), a flow guiding and speed increasing cone (3) is provided. The water outlet of the lower water inlet pipe (8) is adapted to the outer wall of the flow guiding and speed increasing cone (3). The small end of the flow guiding and speed increasing cone (3) is inserted downward into the first swirl collection cone (4) and surrounds the small port at the upper end of the still water anti-disturbance cone (5). The middle part of the separation tank (7) is provided with a lower water inlet pipe (8), the top of the separation tank (7) is provided with a drain pipe (9), the bottom of the separation tank (7) is provided with a first sewage discharge pipe (10), and on the side wall of the separation tank (7), a second sewage discharge pipe (11) adapted to the outer wall of the pressure regulating cone (2) is provided.

2. The timed solid-liquid separator according to claim 1, wherein At the lower end of the inner wall of the separation tank (7), a precipitation collection cone (6) surrounding the lower end of the still water anti-disturbance cone (5) is provided. The first sewage discharge pipe (10) is communicated with the precipitation collection cone (6).

3. The timed solid-liquid separator according to claim 2, wherein, At the bottom end of the precipitation collection cone (6), a sewage collection well (13) is provided. The first sewage discharge pipe (10) is communicated with the sewage collection well (13).

4. The timed solid-liquid separator according to claim 3, wherein, Inside the separation tank (7), a water collection tank (14) connected to the inner end of the drain pipe (9) is provided.

5. A timed solid-liquid separator according to claim 4, characterized in that, Between the outer wall of the pressure regulating cone (2) and the inner wall of the separation tank (7), an isolation funnel (15) is provided. On the conical wall of the isolation funnel (15), sewage discharge holes (16) are provided. The inlet of the second sewage discharge pipe (11) is arranged between the isolation funnel (15) and the pressure regulating cone (2).

6. A timed solid-liquid separator according to claim 4 or 5, characterized in that, The regulating pipe (12) includes an upper water inlet pipe (19) connected to the upper port of the pressure regulating cone (2) and an upper water outlet pipe (20) arranged above the upper port of the second swirl collection cone (1). The outer ends of the upper water outlet pipe (20) and the upper water inlet pipe (19) extend to the outside of the separation tank (7). Outside the separation tank (7), a U-shaped pipe (21) connected to the upper water outlet pipe (20) and the upper water inlet pipe (19) is provided. At the inner end of the upper water outlet pipe (20), a water spray head (22) extending along the tangent direction of the rotary surface of the separation tank (7) is provided.

7. A timed solid-liquid separator according to claim 4 or 5, characterized in that The precipitation collection cone (6) is arranged to surround the still water anti-disturbance cone (5) and the lower end of the first cyclone collection cone (4), and the small end of the still water anti-disturbance cone (5) is inserted upward into the small port at the lower end of the first cyclone collection cone (4); a water retaining ring (18) is provided at the top of the outer wall of the flow guiding and speed increasing cone (3), and the water outlet at the inner end of the lower water inlet pipe (8) is arranged below the water retaining ring (18); the large port at the upper end of the flow guiding and speed increasing cone (3) is inserted into the large port at the lower end of the pressure regulating cone (2).

8. A timed solid-liquid separator according to claim 7, wherein, The regulating pipe (12) includes an upper water inlet pipe (19) connected to the upper port of the pressure regulating cone (2) and an upper water outlet pipe (20) arranged above the upper port of the second cyclone collection cone (1). The upper water inlet pipe (19) extends vertically upward to the upper port of the second cyclone collection cone (1), the upper water outlet pipe (20) is horizontally arranged, a U-shaped pipe (21) connected to the upper water outlet pipe (20) and the upper water inlet pipe (19) is provided outside the separation tank (7), and a water spraying head (22) extending along the tangential direction of the rotating surface of the separation tank (7) is provided at the inner end of the upper water outlet pipe (20).

9. A timed solid-liquid separator according to claim 8, wherein A first timing electric valve (24) is provided on the first sewage discharge pipe (10), and a second timing electric valve (25) is provided on the second sewage discharge pipe (11).

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